From fb6958a594da49ece869793e6ec163b89fc5f79f Mon Sep 17 00:00:00 2001 From: Cornelia Huck Date: Fri, 6 Jan 2006 00:19:25 -0800 Subject: [PATCH] s390: multiple subchannel sets support Add support for multiple subchannel sets. Works with arbitrary devices in subchannel set 1 and is transparent to device drivers. Although currently only two subchannel sets are available, this will work with the architectured maximum number of subchannel sets as well. Signed-off-by: Cornelia Huck Signed-off-by: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/s390/cio/css.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/s390/cio/css.h') diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h index b74659cab0af..251ebd7a7d3a 100644 --- a/drivers/s390/cio/css.h +++ b/drivers/s390/cio/css.h @@ -77,6 +77,7 @@ struct ccw_device_private { unsigned long registered; __u16 devno; /* device number */ __u16 sch_no; /* subchannel number */ + __u8 ssid; /* subchannel set id */ __u8 imask; /* lpm mask for SNID/SID/SPGID */ int iretry; /* retry counter SNID/SID/SPGID */ struct { @@ -135,6 +136,7 @@ extern int css_init_done; extern int for_each_subchannel(int(*fn)(struct subchannel_id, void *), void *); #define __MAX_SUBCHANNEL 65535 +#define __MAX_SSID 3 #define __MAX_CHPID 255 #define __MAX_CSSID 0 -- cgit v1.2.2